[Mobilizon] Maybe fixed SMTP protocol encryption

pica-mobilizon/app/prod.secret.exs

@@ -42,7 +42,7 @@ config :mobilizon, Mobilizon.Web.Email.Mailer,
   password: System.get_env("MOBILIZON_SMTP_PASSWORD", nil),
   # can be `:always` or `:never`
   tls: :if_available,
-  allowed_tls_versions: [:tlsv1, :"tlsv1.1", :"tlsv1.2"],
+  allowed_tls_versions: [:tlsv1, :"tlsv1.1", :"tlsv1.2", :"tlsv1.3"],
   # can be `true`
   ssl: System.get_env("MOBILIZON_SMTP_SSL", "false"),
   retries: 1,

pica-mobilizon/secrets/mobilizon-app.secrets.example

@@ -6,4 +6,4 @@ MOBILIZON_SMTP_HOSTNAME=your.host.fr
 MOBILIZON_SMTP_PORT=25
 MOBILIZON_SMTP_USERNAME=your@email.com
 MOBILIZON_SMTP_PASSWORD=yourpasswordtologin
-MOBILIZON_SMTP_SSL=true
+MOBILIZON_SMTP_SSL=false